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Submission #1093643

# Submission time Handle Problem Language Result Execution time Memory
1093643 2024-09-27T07:24:35 Z IBory Flip it and Stick it (CCO23_day2problem1) C++17
25 / 25
 35 ms 10192 KB 
#include <bits/stdc++.h>
using namespace std;

int Count(string S, string T) {
	int ret = 0;
	for (int i = 0; i + T.size() <= S.size(); ++i) {
		ret += (S.substr(i, T.size()) == T);
	}
	return ret;
}

int Solve(string S, string T) {
	if (T.size() == 1) return (S.find(T) == string::npos ? 0 : -1);
	int N = S.size();

	if (T == "011" || T == "100") {
		reverse(S.begin(), S.end());
		reverse(T.begin(), T.end());
	}
	if (T[0] == '1') {
		for (char& c : S) c ^= 1;
		for (char& c : T) c ^= 1;
	}

	int zero = 0;
	for (char c : S) zero += (c == '0');

	if (T == "01") return Count(S, T);
	if (T == "00") {
		int lim = (N + 1) / 2;
		if (lim < zero) return -1;
		return Count(S, T);
	}

	if (T == "001") return Count(S, T);
	if (T == "010") return (Count(S, T) + 1) / 2;
	if (T == "000") {
		int lim = N - N / 3;
		if (lim < zero) return -1;
		
		int ret = 0;
		for (int t = 0; t < 2; ++t) {
			int go = -1;
			for (int i = 0; i + 2 < N; ++i) {
				if (S.back() == '0') break;
				if (S[i] == '1' || S[i + 1] == '1' || S[i + 2] == '1') continue;
				if (i + 3 < N && S[i + 3] == '0') {
					go = i;
					break;
				}
				else go = i;
			}
			if (go != -1) {
				ret++;
				reverse(S.begin() + go + 2, S.end());
			}
			reverse(S.begin(), S.end());
		}

		multiset<int> X;
		int cur = 0;
		for (char c : S) {
			if (c == '0') cur++;
			else {
				X.insert(cur);
				cur = 0;
			}
		}
		X.insert(cur);

		while (3 <= *X.rbegin()) {
			ret++;
			int a = *X.begin(), b = *X.rbegin();
			int n = min(2 - a, b - 2);
			X.erase(X.find(a));
			X.erase(X.find(b));
			X.insert(a + n);
			X.insert(b - n);
		}

		return ret;
	}
}

int main() {
	ios::sync_with_stdio(0); cin.tie(0);
	string S, T;
	cin >> S >> T;
	cout << Solve(S, T);
	return 0;
}

Compilation message

Main.cpp: In function 'int Solve(std::string, std::string)':
Main.cpp:83:1: warning: control reaches end of non-void function [-Wreturn-type]
   83 | }
      | ^

Subtask #1
1.0 / 1.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 996 KB Output is correct
4 Correct 1 ms 996 KB Output is correct
5 Correct 1 ms 996 KB Output is correct
6 Correct 1 ms 992 KB Output is correct
7 Correct 1 ms 980 KB Output is correct

Subtask #2
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 3 ms 1252 KB Output is correct
7 Correct 3 ms 1248 KB Output is correct
8 Correct 3 ms 1252 KB Output is correct
9 Correct 2 ms 1252 KB Output is correct
10 Correct 2 ms 1252 KB Output is correct

Subtask #3
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 3 ms 1252 KB Output is correct
7 Correct 3 ms 1248 KB Output is correct
8 Correct 3 ms 1252 KB Output is correct
9 Correct 2 ms 1252 KB Output is correct
10 Correct 2 ms 1252 KB Output is correct
11 Correct 0 ms 344 KB Output is correct
12 Correct 0 ms 344 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 3 ms 1252 KB Output is correct
21 Correct 2 ms 1276 KB Output is correct
22 Correct 3 ms 1252 KB Output is correct
23 Correct 3 ms 1248 KB Output is correct
24 Correct 3 ms 1248 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 3 ms 1252 KB Output is correct
27 Correct 3 ms 1252 KB Output is correct
28 Correct 1 ms 988 KB Output is correct
29 Correct 3 ms 1368 KB Output is correct
30 Correct 3 ms 1252 KB Output is correct
31 Correct 2 ms 1252 KB Output is correct
32 Correct 2 ms 1384 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 0 ms 348 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 452 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 3 ms 1252 KB Output is correct
8 Correct 3 ms 1252 KB Output is correct
9 Correct 3 ms 1280 KB Output is correct
10 Correct 3 ms 1252 KB Output is correct
11 Correct 3 ms 1248 KB Output is correct
12 Correct 3 ms 1240 KB Output is correct
13 Correct 3 ms 1248 KB Output is correct

Subtask #5
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 3 ms 1252 KB Output is correct
11 Correct 3 ms 1252 KB Output is correct
12 Correct 3 ms 1252 KB Output is correct
13 Correct 3 ms 1252 KB Output is correct
14 Correct 3 ms 1240 KB Output is correct
15 Correct 3 ms 1248 KB Output is correct
16 Correct 3 ms 1248 KB Output is correct
17 Correct 2 ms 1252 KB Output is correct
18 Correct 3 ms 1252 KB Output is correct
19 Correct 2 ms 1252 KB Output is correct
20 Correct 2 ms 1252 KB Output is correct
21 Correct 2 ms 1252 KB Output is correct
22 Correct 3 ms 1252 KB Output is correct

Subtask #6
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 452 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 3 ms 1252 KB Output is correct
8 Correct 3 ms 1252 KB Output is correct
9 Correct 3 ms 1280 KB Output is correct
10 Correct 3 ms 1252 KB Output is correct
11 Correct 3 ms 1248 KB Output is correct
12 Correct 3 ms 1240 KB Output is correct
13 Correct 3 ms 1248 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 3 ms 1252 KB Output is correct
24 Correct 3 ms 1252 KB Output is correct
25 Correct 3 ms 1252 KB Output is correct
26 Correct 3 ms 1252 KB Output is correct
27 Correct 3 ms 1240 KB Output is correct
28 Correct 3 ms 1248 KB Output is correct
29 Correct 3 ms 1248 KB Output is correct
30 Correct 2 ms 1252 KB Output is correct
31 Correct 3 ms 1252 KB Output is correct
32 Correct 2 ms 1252 KB Output is correct
33 Correct 2 ms 1252 KB Output is correct
34 Correct 2 ms 1252 KB Output is correct
35 Correct 3 ms 1252 KB Output is correct
36 Correct 0 ms 344 KB Output is correct
37 Correct 0 ms 348 KB Output is correct
38 Correct 33 ms 10192 KB Output is correct
39 Correct 20 ms 4068 KB Output is correct
40 Correct 1 ms 996 KB Output is correct
41 Correct 34 ms 4068 KB Output is correct
42 Correct 35 ms 4068 KB Output is correct
43 Correct 26 ms 4064 KB Output is correct
44 Correct 32 ms 5860 KB Output is correct
45 Correct 1 ms 992 KB Output is correct
46 Correct 24 ms 4340 KB Output is correct
47 Correct 19 ms 4068 KB Output is correct
48 Correct 16 ms 4320 KB Output is correct
49 Correct 0 ms 344 KB Output is correct
50 Correct 1 ms 348 KB Output is correct
51 Correct 0 ms 344 KB Output is correct
52 Correct 0 ms 456 KB Output is correct
53 Correct 0 ms 348 KB Output is correct
54 Correct 2 ms 1252 KB Output is correct
55 Correct 2 ms 1252 KB Output is correct
56 Correct 3 ms 1252 KB Output is correct
57 Correct 3 ms 1252 KB Output is correct
58 Correct 2 ms 1252 KB Output is correct
59 Correct 3 ms 1252 KB Output is correct
60 Correct 3 ms 1252 KB Output is correct
61 Correct 0 ms 344 KB Output is correct
62 Correct 0 ms 344 KB Output is correct
63 Correct 0 ms 348 KB Output is correct
64 Correct 0 ms 348 KB Output is correct
65 Correct 3 ms 1252 KB Output is correct
66 Correct 3 ms 1252 KB Output is correct
67 Correct 3 ms 1380 KB Output is correct
68 Correct 2 ms 1252 KB Output is correct
69 Correct 5 ms 1252 KB Output is correct
70 Correct 2 ms 1252 KB Output is correct
71 Correct 3 ms 1248 KB Output is correct
72 Correct 0 ms 348 KB Output is correct
73 Correct 1 ms 348 KB Output is correct